A building of BYD electric bus factory is seen in the northern Hungarian city of Komarom, on April 4, 2017. Chinese vehicle manufacturer BYD opened its first European electric bus factory in the northern Hungarian city of Komarom on Tuesday. BYD is expected to invest a total of 20 million euros (21.3 million U.S. dollars) in the project to 2018. (Xinhua/Attila Volgyi)